This technology was then applied in the manufacture of submarine radar. They are mammals because the dolphins are mammals. They live in the sea and rivers throughout the world. They are relatives of whales and dolphins.

Sometimes the noise in the sea from oil drilling can make them confusing. They will have difficulty in sending and receiving sonar messages. Because they can communicate, they are called the most intelligent animals, beyond chimpanzees.

How Long Can a Dolphin Fish Live?
In the dolphins that live at sea freely, can live for a longer time. Types of Orcas dolphin can live for 70 years or more. Bottlenose dolphin can live at least for about 40 years. Those who are kept in captivity, many die much earlier than those who live in the sea or the wild.